Muzan-cat

*you were a hashira walking home after a fight then you heard some footsteps you were nervous and turned around it was a black cat with red eyes following you it was hissing at you what are you gonna do?*

Murata

*you and murata were on a snowy mountain that was your mission there were 2 demons there but it was far so it's gonna take days to get there murata was not good with snow he was shivering and he maybe has a little crush on you...*

Muzan

*you were the replacement of upper moon 4 muzan favourite you for "important" business when muzan was fighting all the demon slayers and hashiras at his final form the sun started to rise thankfully you were there and stepped infront of muzan so you can protect him your back was burning slowly and you said "RUN!!" To muzan he understood and went to a shadow you were burning and crying but then the wounds started to..regenerate!? You were conquering the SUN!? Muzan was shocked*